Waste heat apparatus



Nov. 15, 1949 J. J. BRADLEY 2,483,156

WASTE HEAT APPARATUS Filed May 24, 1946 2 Sheets-Sheet 2 FIG. 3

. INVENTOR JACOB 7'- BBQADLEY,

Patented Nov. 15,1949

UNITED STATES PATENT OFFICE 2,488,166 WASTE HEAT APPARATUS Jacob J. Bradley, Philadelphia, Pa.

Application May 24, 1946, Serial No. 671,993

4 Claims. 1

This invention relates to a heating apparatus, and more particularly, to such a device for heating of water.

A primary object of this invention is the provision of improved apparatus adapted to be utilized with a range or stove or the like, whereby the heat from the stove which otherwise would be wasted by passage through the flue is utilized to heat water in a storage tank associated with the apparatus of the instant invention.

A further object of the invention is the provision of such an apparatus which may be readily detached from the stove or the like and which contains an independent fire box, whereby the water contained in the tank thereof may be readily heated independently of the stove.

A further object of the invention is the provision of such an apparatus provided with watercirculation means, including upper and lower coils whereby thorough heating of the water in a relatively short time is assured.

Still another object of the invention is the pro vision of such an apparatus which is sturdy and durable in construction, reliable and eificient in operation, and relatively simple and inexpensive to manufacture and assemble.

Other objects reside in the combinations of elements, arrangements of parts, and features of construction, all as will be more fully pointed out hereinafter and shown in the accompanying drawings, wherein there is disclosed a preferred embodiment of this inventive concept.

In the drawings:

Figure 1 is a vertical sectional view taken substantially along the center line of one form of apparatus embodying features of the instant invention, showing the same in association with a range or stove, a fragment of the latter being shown.

Figure 2 is a sectional view taken substantially along the line 2-2 of Figure 1, as viewed in the direction indicated by the arrows; and

Figure 3 is a transverse cross-section taken substantially in the plane of. the section line 3-3 of Figure 1.

Similar reference characters refer to similar parts throughout the several views of the drawmgs.

Referring now to the drawings, the device of the instant invention comprises a casing generally indicated at l0, including upper and lower' rectangular chambers generally indicated at l2 and I3, respectively disposed one above and one below an intermediate frame ledge The lower chamber I3 is provided interiorly with supporting frame members l4 for the ledge H and includes four headers |5, |5', I6, and |6', all of the headers being connected by spaced pairs of pipes H, with the exception of connections between the headers l6 and 6'. The space between the headers l6 and I5 is thus left clear, providing access to a fire box l9, such access being permitted by means of a door 2|) pivotally secured, as on hinge members 2|, to the outside wall of the casing or housing ID.

A grate 22 is provided in the base of the fire box l9 and suitably supported by transversely extending members 23 and the door 2|] may be provided with suitable draft openings.

The lower chamber I3 is provided with an extending breeching 25 comprising walls 23 in the lower of which is provided an aperture 27 adapted to receive the flue 28 of a conventional stove or range 29.

It will thus be seen that heat may be supplied to the headers, as well as the pipes water being circulated through the headers and pipes in a manner to be more fully described hereinafter, either by means of a fire in the fire box 9, or by means of a fire in the range 29, the arrangement being such that the device may be readily moved from its association with the range, if desired.

The upper changer |2 includes headers 3|, 32,,

the tank. The base 45 of the tank is supportedon suitable supporting angle irons 45, or the like, carried by the frame ledge II. The plate 44 is apertured to accommodate a fine 41, which extends through a suitable sealing boss 48 interiorly of the tank 4| and upwardly through the top 49 of the tank. The flue 41 is provided with a damper 50 provided with an exterior operating handle 5|, and terminates in a cross-header 52 provided with a stack 53. A riser 54, also provided with a damper 55 having an exterior operating handle 56, communicates with the space 51 between the wall of the tank 40 and the exterior wall of the housing l0 at the open side of the upper coil to provide an alternate path around the coil in the upper chamber for the escape of heat and gases from the upper chamber l2. An exterior water gauge including parallel horizontal pipes 66 connected by a water glass 67 is also provided, the pipes 66 extending through suitable apertures in the side wall 40 of the tank and being provided with suitable sealing washers 68.

A fluid connection including a pipe 60 extends from the header l5 to the header 32, while a second fluid connection extends from an aperture 6| in the base of the tank 4| through a pipe 62 into the lower extremity of the header l6. Similarly, as best shown in Figure 2, an inlet 63 is provided adjacent the top of the tank 4! into the header 34, while an outlet 64 extends from the header 3| to the exterior of the housing l0, whereby Water may be drawn from the system.

From the foregoing, the operation of the device should be readily understood. Fire, either in the range 29 or the fire box 19 heats water in the pipes H, as well as the headers in the lower chamber, the heated water tending to rise through'the connection 60 into the upper header 32, from which it passes through the pipes 35 to header 3!, through pipes 36 to header 33, and then from header 33 it passes through pipes 31 to header 34. The rising hot water may exit'from the upper coil into the tank through the connection 53, while water enters the lower coil through the pipe 62 at the base of the header l6". Thus, a relatively continual circulation of water through the system is provided, generated by the variations in temperature of the water in various portions of the apparatus, insuring an effective heating of all the water in the tank M,- which hot water may be suitably drawn oil through the outlet 64, as desired. Replacement water may be admitted to the tank through a pipe 65 extending through the top of the tank or by other means as may be found convenient.

From the foregoing it will now be seen-that there is herein provided an improved water heating apparatus which accomplishes all the objects of this invention, and others, including many advantages of great practical utility and commercial importance.

As many embodiments may be made of this inventive concept, and as many modifications may be made in the embodiment hereinbefore shown and described, it is to be understood that all matter herein is to be interpreted merely as illustrative and not in a limiting sense.

I claim:

1. Heating apparatus comprising a casing including upper and lower rectangular-chambers, a header in each of the four corners of each chamber, a water tankin the upper chamber, pipes connecting the headers in the lower chamber,- additional pipes connecting the headers in the upper chamber, a connection between one of the lower headers and an upper header, a water inlet from the bottom of said tank to the bottom of one lower header, and a water outlet adjacent the top of one upper header.

2. Heating apparatus comprising a casing including upper and lower rectangular chambers, a header in each corner of each chamber, a water tank in the upper chamber having a recess in the bottom thereof, pipes connecting the headers in the lower chamber, additional pipes connecting the headers in the upper chamber, a connection between the top of one of the lower headers and the bottom of the superimposed upper header, a water connection between the bottom of said tank and the bottom of a second lower header, a water outlet adjacent the top of an upper header, and a flue extending through said tank and into said tank recess.

3. Heating apparatus comprising a casing including an upper and a lower rectangular chamber, a header in each corner of each chamber, a water tank in said upper chamber having a recess in the bottom thereof, pipes connecting the headers in the lower chamber, additional pipes connecting the headers in the upper chamber, a connection between the top of one of the lower headers and the bottom of the superimposed upper header, a water connection between the bottom of said tank and the bottom of a lower header, a water outletadjacent the'top'of an 'upperheader, a flue extending through said tank into thebottom recess thereof, and a hollow breeching extending laterally from said 'lowerchamber and havingan aperture in the bottom thereof-to receive the flue of a range.

4. A water heater comprising a rectangular casing including an upper and a lower water heat-. ing chamber, four vertical headers in each cham--, ber arranged in rectangular relationship, substantially horizontal pipes connecting the headers in each chamber on three sides of the rectangular arrangement thereof and constituting separate upper andlower heating coils, arectangular tank in said upper chamber within the confines of said upperheating coil, a water connection between the bottom of said upper coil and the top of said lower coil, a'secondwater connection between the bottom'of said tank and the bottom of said lower coil, athird water connection between the top ofsaid upper coil and the top of said tank, and a water outlet connection leading from said upper coil.

JACOB J. BRADLEY.

REFERENCES CITED The following references-are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date Re. 18,748 Murray Feb. 28, 1933 312,447 Draper Feb. 1'7, 1885 420,019 Rice Jan. 21, 1890 550,117 Williams Nov. 19, 1895 562,736 Nilsson June 23, 1896 839,568 Finnigan Dec. 25, 1906 945,130 Lycan Jan. 4, 1910 971,167 Blackwell Sept. 27, 1910 1,089,551 Hard Mar. 10, 1914 1,151,577 Eberhart Aug. 31, 1915 1,151,676 Foersterling Aug. 31, 1915 2,311,469 Pruitt Feb. 16, 1943 FOREIGN PATENTS Number Country Date 10,194 Norway Mar. 27, 1901 

